Recently, Dadukou Jianqiao Industrial Park received a good news. Supported by the Municipal Science and Technology Commission, International Composites, Chongqing University, and Chongqing University of Technology jointly developed CNG (compressed natural gas) high-pressure gas bottle glass fiber yarn and high-performance long glass fiber. Two new materials. Previously, these two kinds of materials used domestically were mainly produced by foreign companies such as OCV and PPG, which filled the domestic gap and broke the monopoly of foreign companies in this field.
Glass fiber is an inorganic non-metal material with good insulation, strong heat resistance, and strong corrosion resistance. Its components are silica, alumina and the like. It is a mineral raw material made by high temperature melting, drawing and other processes. Its monofilament has a diameter of several micrometers to 20 micrometers, which is equivalent to 1/20-1/5 of a hair filament. Each bundle of fiber precursor has hundreds or even thousands of monofilaments, usually as a composite. Reinforcement material.
According to reports, CNG high-pressure gas cylinder glass fiber yarn wound around the outside of the vehicle CNG cylinder not only prevents its rust, but also the cylinder liner can be made thinner because the impact resistance becomes stronger, and the overall weight can be reduced by 40%. -55%.
“On the basis of the number of taxis alone, Chongqing uses more than 200,000 gas cylinders per year, and our prices are more than 20% cheaper. We have more competitive advantages.†The international composite responsible person revealed to reporters that not only the Chongqing market is against them but also The statement is a blue ocean. It is expected that within two to three years, they will also occupy more than 50% of the market share in the southwest region, and the annual output value will exceed 200 million yuan.
The high-performance long glass fiber developed this time is mainly used to achieve lightweight automotive components. "This material has the same impact resistance as steel, but its weight is 2/3 lighter than steel, and its price is about 40% less than that of comparable magnesium alloy." The person in charge introduced the pelvis of the car body. Parts such as dashboards, car door panels, etc. can all be made from this material, so that the weight of a full vehicle can be reduced by around 50 kilograms. "At present, we have cooperated with Chang'an Automobile and China Automotive Engineering Technology Research Institute to develop lighter parts and components."
Glass fiber material has been developed since the 1930s. It has been used in more than 50,000 downstream products in Europe and the United States, and China has less than 10,000 types. "The huge gap allows us to see the development potential of glass fiber, there are more applications that can be developed." The person in charge said.
“Although the city has a good foundation in the automotive industry, there are fewer light-weight parts and auto parts companies. At present, it is mainly some metal parts auto parts enterprises.†Dadukou District Economic and Information Committee said that in the next step, they will focus on the introduction of a rich variety of raw products. The auto parts companies, and guide them to use glass fiber for product manufacturing, the formation of an entire glass fiber industry chain. (Reporter He Xin)
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